2015 Lexus ES300h power steering

ES350_300h_OM_OM33B99U_(U)
1974-1. Before driving
4
Driving
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pedals at the same time during driving,
as this may restrain driving torque.
●Do not use the accelerator pedal or depress the accelerator and brake pedals at
the same time to hold the vehicle on a hill.
■When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move or
the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage th e power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 6 5 9 )

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ES350_300h_OM_OM33B99U_(U)
4-2. Driving procedures
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION
ON mode (the engine is not running) for more than an hour with the shift lever in P,
the “START STOP ENGINE” switch will automatically turn off. However, this func-
tion cannot entirely prevent 12-volt batter y discharge. Do not leave the vehicle with
the “START STOP ENGINE” switch in ACCESSORY or IGNITION ON mode for
long periods of time when the engine is not running.
■Electronic key battery depletion
P. 1 3 8
■Conditions affecting operation
P. 1 3 4
■Notes for the entry function
P. 1 3 5
■If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 8 4 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The engine may not start if the shift
lever is displaced out of P. “Shift to P position to Start” will be displayed on the multi-
information display.
■Steering lock
After turning the “START STOP ENGINE” switch off and opening and closing the
doors, the steering wheel will be locked due to the steering lock function. Operating
the “START STOP ENGINE” switch again automatically cancels the steering lock.

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ES350_300h_OM_OM33B99U_(U)
4-2. Driving procedures
CAUTION
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the accel-
erator pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle is moving, do not lock or open the doors
until the vehicle reaches a safe and complete stop. Activation of the steering lock in
this circumstance may lead to an accident, resulting in death or serious injury.
■Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving the vehicle, press and
hold the “START STOP ENGINE” switch for more than 2 seconds, or press it
briefly 3 times or more in succession. (P. 6 1 5 )
However, do not touch the “START STOP ENGINE” switch while driving except in
an emergency. Turning the en gine off while driving will not cause loss of steering or
braking control, but the power assist to these systems will be lost. This will make it
more difficult to steer and brake, so you should pull over and stop the vehicle as
soon as it is safe to do so.

ES350_300h_OM_OM33B99U_(U)
2154-2. Driving procedures
4
Driving
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON mode
(the hybrid system is not operating) for more than an hour with the shift lever in P, the
“POWER” switch will automatically turn off. However, this function cannot entirely
prevent 12-volt battery discharge. Do not leave the vehicle with the “POWER”
switch in ACCESSORY or ON mode for long periods of time when the hybrid sys-
tem is not operating.
■Sounds and vibrations specific to a hybrid vehicles
 P. 76
■Electronic key battery depletion
P. 1 3 8
■When the ambient temperature is low, such as during winter driving conditions
It may take time until the “READY” indicator comes on.
■Conditions affecting operation
P. 1 3 4
■Notes for the entry function
P. 1 3 5
■If the hybrid system does not start
●The immobilizer system may not have been deactivated. ( P. 8 6 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The hybrid system may not start if the
shift lever is displaced out of P. “Shift to P position when starting” will be displayed
on the multi-information display.
■Steering lock
After turning the “POWER” switch off and opening and closing the doors, the steer-
ing wheel will be locked due to the stee ring lock function. Operating the “POWER”
switch again automatically cancels the steering lock.

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ES350_300h_OM_OM33B99U_(U)
4-2. Driving procedures
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the hybrid system is turned on and off repeatedly in a short period of time. In this
case, refrain from operating the hybrid sy stem. After about 10 seconds, the steering
lock motor will resume functioning.
■When “Check Access System with Elec. Key” is displayed on the multi-information
display
The system may be malfunctio ning. Have the vehicle inspected by your Lexus dealer
immediately.
■If the “READY” indicator does not come on
If the “READY” indicator does not come on when you press the “POWER” switch
with the shift lever in P and the brake pedal depressed, contact your Lexus dealer
immediately.
■If the hybrid system is malfunctioning
 P. 6 3 7
■If the electronic key battery is depleted
P. 5 8 4
■Operation of the “POWER” switch
●When operating the “POWER” switch, one shor t, firm press is enough. If the switch
is pressed improperly, the hybrid system may not start or the “POWER” switch
mode may not change. It is not necessary to press and hold the switch.
●If attempting to restart the hybrid syst em immediately after turning the “POWER”
switch off, the hybrid system may not start in some cases. After turning the
“POWER” switch off, please wait a few se conds before restarting the hybrid sys-
tem.
■If the smart access system with push-but ton start has been deactivated in a cus-
tomized setting
 P. 6 7 7
“Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is set in P. Press the
“POWER” switch while
turning the steering
wheel left and right.

ES350_300h_OM_OM33B99U_(U)
2174-2. Driving procedures
4
Driving
■Odometer and trip meter display
When the “POWER” switch is turned off, the odometer or trip meter display will
extinguish after approximately 30 seconds.
CAUTION
■When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Caution while driving
If hybrid system failure occurs while the vehicle is moving, do not lock or open the
doors until the vehicle reaches a safe and complete stop. Activation of the steering
lock in this circumstance may lead to an accident, resulting in death or serious
injury.
■Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehicle,
press and hold the “POWER” switch for more than 2 seconds, or press it briefly 3
times or more in succession. ( P. 615)
However, do not touch the “POWER” switch while driving except in an emer-
gency. Turning the hybrid system off while driving will not cause loss of steering or
braking control, however, power assist to the steering will be lost. This will make it
more difficult to steer smoothly, so you should pull over and stop the vehicle as
soon as it is safe to do so.

ES350_300h_OM_OM33B99U_(U)
2954-5. Using the driving support systems
4
Driving
■Screen display
The parking assist monitor screen
will be displayed if the shift posi-
tion is shifted to R while the
“START STOP ENGINE”
<“POWER”> switch is in
IGNITION ON mode.Intuitive parking assist display
(if equipped)
If an obstacle is detected while the intuitive parking assist is on, a display is
shown in the top right corner of the screen.
■Using the system
Use any of the following modes.
●Estimated course line display mode ( P. 2 9 8 )
Estimated course lines are dis-
played which move in accor-
dance with the operation of the
steering wheel.
Using the Lexus parking assist monitor
A

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ES350_300h_OM_OM33B99U_(U)
4-5. Using the driving support systems
The guide lines are very far out of alignment
The camera position is out of alignment.Have the vehicle inspected by your
Lexus dealer.
• The vehicle is tilted (there is a heavy
load on the vehicle, tire pressure is
low due to a tire puncture, etc.)
• The vehicle is used on an incline.If this happens due to these causes, it
does not indicate a malfunction.
Back up while visually checking the
vehicle’s surroundings.
 The estimated course lines move even though the steering wheel is straight
There is a malfunction in the signals
being output by the steering sensor.Have the vehicle inspected by your
Lexus dealer.
Guide lines are not displayed
The trunk is open.
Close the trunk.
If this does not resolve the symptom,
have the vehicle inspected by your
Lexus dealer.
The estimated course lines are not displayed
• 12-volt battery power is low.
• The steering sensor has been rein-
stalled.
• There is a malfunction in the signals being output by the steering sensor.Stop the vehicle, and turn the steering
wheel as far as it will go to the left and
right.
If this does not resolve the symptom,
have the vehicle inspected by your
Lexus dealer.
Likely causeSolution